Physics, asked by khawakhetweyi, 2 months ago

The prism angle of a very thin prism is measured by observing interference fringes as in the Fresnel biprism technique. The distances from slit to prism and from prism to eye are in the ratio 1:4. Twenty dark fringes are found to span a distance of 0.5 cm when green mercury light (λ = 546.1 nm) is used. If the refractive index of the prism is 1.50, determine the prism angle.

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Answered by nikhilraj42

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The prism angle of a very thin prism is measured by observing interference fringes as in the Fresnel biprism technique. The distances from slit to prism and from prism to eye are in the ratio 1:4. Twenty dark fringes are found to span a distance of 0.5 cm when green mercury light (λ = 546.1 nm) is used. If the refractive index of the prism is 1.50, determine the prism angle.

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